LTC2640A-12 具 10ppm/℃ 基准的单通道 12 位 SPI Vout DAC

LTC®2633 是一个双通道 12 位、10 位和 8 位电压输出 DAC 系列,具有一个集成、高准确度、低漂移基准,采用 8 引脚 TSOT-23 封装。它内置轨至轨输出缓冲器,并保证具有单调特性。LTC2640-L 具有一个 2.5V 的全标度输出,并采用 2.7V 至 5.5V 的单工作电源。LTC2640-H 具有一个 4.096V 的全标度输出,并采用 4.5V 至 5.5V 的单工作电源。每个 DAC 也可以采用一个外部基准来运作,该外部基准负责将 DAC 全标度输出设定为外部基准电压。

这些 DAC 通过一个二线式 I2C 兼容型串行接口进行通信,LTC2640 工作于标准模式 (时钟速率为 100kHz) 和快速模式 (时钟速率为 400kHz)。LTC2640 内置了一个上电复位电路。提供了在上电之后于内部基准模式中复位至零标度或复位至中间标度、或于外部基准模式中复位至中间标度、或于一种高阻抗状态中和所有的 DAC 输出一起复位的选项。

产品特点 Features
  • 集成型精准基准
             2.5V 全标度 10ppm/ºC (LTC2640-L)
             4.096V 全标度 10ppm/ºC (LTC2640-H)
  • 最大 INL 误差:±1LSB (LTC2640A-12)
  • 低噪声:0.75mVP-P (0.1Hz 至 200kHz)
  • 在 -40ºC 至 125ºC 的温度范围内保证单调特性
  • 可选的内部或外部基准
  • 2.7V 至 5.5V 电源范围 (LTC2640-L)
  • 低功率:0.4mA (在 3V)
  • 上电复位至零标度 / 中间标度 / 高阻抗
  • 双缓冲数据锁存器
  • 8 引脚 ThinSOTTM 封装
封装
LTC2640A-12 参数
应用
  • 移动通信
  • 过程控制和工业自动化
  • 自动测试设备
  • 便携式设备
  • 汽车
典型应用图
LTC2640A-12 典型应用
参数
LTC2640A-12 参数
LTC2640A-12 订购信息和价格参考Package Variations and Pricing
器件型号 封装 引脚 温度 价格 (以 1 ~ 99 片为批量) 价格 (以 1000 片为批量) *
LTC2640ACTS8-HM12#PBF SOT 8 C $3.02 
LTC2640ACTS8-HM12#TRMPBF SOT 8 C $3.02  $2.13 
LTC2640ACTS8-HM12#TRPBF SOT 8 C $2.08 
LTC2640ACTS8-HZ12#PBF SOT 8 C $3.02 
LTC2640ACTS8-HZ12#TRMPBF SOT 8 C $3.02  $2.13 
LTC2640ACTS8-HZ12#TRPBF SOT 8 C $2.08 
LTC2640ACTS8-LM12#PBF SOT 8 C $3.02 
LTC2640ACTS8-LM12#TRMPBF SOT 8 C $3.02  $2.13 
LTC2640ACTS8-LM12#TRPBF SOT 8 C $2.08 
LTC2640ACTS8-LZ12#PBF SOT 8 C $3.02 
LTC2640ACTS8-LZ12#TRMPBF SOT 8 C $3.02  $2.13 
LTC2640ACTS8-LZ12#TRPBF SOT 8 C $2.08 
LTC2640AHTS8-HM12#PBF SOT 8 H $3.65 
LTC2640AHTS8-HM12#TRMPBF SOT 8 H $3.65  $2.57 
LTC2640AHTS8-HM12#TRPBF SOT 8 H $2.52 
LTC2640AHTS8-HZ12#PBF SOT 8 H $3.65 
LTC2640AHTS8-HZ12#TRMPBF SOT 8 H $3.65  $2.57 
LTC2640AHTS8-HZ12#TRPBF SOT 8 H $2.52 
LTC2640AHTS8-LM12#PBF SOT 8 H $3.65 
LTC2640AHTS8-LM12#TRMPBF SOT 8 H $3.65  $2.57 
LTC2640AHTS8-LM12#TRPBF SOT 8 H $2.52 
LTC2640AHTS8-LZ12#PBF SOT 8 H $3.65 
LTC2640AHTS8-LZ12#TRMPBF SOT 8 H $3.65  $2.57 
LTC2640AHTS8-LZ12#TRPBF SOT 8 H $2.52 
LTC2640AITS8-HM12#PBF SOT 8 I $3.32 
LTC2640AITS8-HM12#TRMPBF SOT 8 I $3.32  $2.34 
LTC2640AITS8-HM12#TRPBF SOT 8 I $2.29 
LTC2640AITS8-HZ12#PBF SOT 8 I $3.32 
LTC2640AITS8-HZ12#TRMPBF SOT 8 I $3.32  $2.34 
LTC2640AITS8-HZ12#TRPBF SOT 8 I $2.29 
LTC2640AITS8-LM12#PBF SOT 8 I $3.32 
LTC2640AITS8-LM12#TRMPBF SOT 8 I $3.32  $2.34 
LTC2640AITS8-LM12#TRPBF SOT 8 I $2.29 
LTC2640AITS8-LZ12#PBF SOT 8 I $3.32 
LTC2640AITS8-LZ12#TRMPBF SOT 8 I $3.32  $2.34 
LTC2640AITS8-LZ12#TRPBF SOT 8 I $2.29 
LTC2640CTS8-HM10#PBF SOT 8 C $1.89 
LTC2640CTS8-HM10#TRMPBF SOT 8 C $1.89  $1.34 
LTC2640CTS8-HM10#TRPBF SOT 8 C $1.29 
LTC2640CTS8-HM12#PBF SOT 8 C $2.16 
LTC2640CTS8-HM12#TRMPBF SOT 8 C $2.16  $1.53 
LTC2640CTS8-HM12#TRPBF SOT 8 C $1.48 
LTC2640CTS8-HM8#PBF SOT 8 C $1.52 
LTC2640CTS8-HM8#TRMPBF SOT 8 C $1.52  $1.08 
LTC2640CTS8-HM8#TRPBF SOT 8 C $1.03 
LTC2640CTS8-HZ10#PBF SOT 8 C $1.89 
LTC2640CTS8-HZ10#TRMPBF SOT 8 C $1.89  $1.34 
LTC2640CTS8-HZ10#TRPBF SOT 8 C $1.29 
LTC2640CTS8-HZ12#PBF SOT 8 C $2.16 
LTC2640CTS8-HZ12#TRMPBF SOT 8 C $2.16  $1.53 
LTC2640CTS8-HZ12#TRPBF SOT 8 C $1.48 
LTC2640CTS8-HZ8#PBF SOT 8 C $1.52 
LTC2640CTS8-HZ8#TRMPBF SOT 8 C $1.52  $1.08 
LTC2640CTS8-HZ8#TRPBF SOT 8 C $1.03 
LTC2640CTS8-LM10#PBF SOT 8 C $1.89 
LTC2640CTS8-LM10#TRMPBF SOT 8 C $1.89  $1.34 
LTC2640CTS8-LM10#TRPBF SOT 8 C $1.29 
LTC2640CTS8-LM12#PBF SOT 8 C $2.16 
LTC2640CTS8-LM12#TRMPBF SOT 8 C $2.16  $1.53 
LTC2640CTS8-LM12#TRPBF SOT 8 C $1.48 
LTC2640CTS8-LM8#PBF SOT 8 C $1.52 
LTC2640CTS8-LM8#TRMPBF SOT 8 C $1.52  $1.08 
LTC2640CTS8-LM8#TRPBF SOT 8 C $1.03 
LTC2640CTS8-LZ10#PBF SOT 8 C $1.89 
LTC2640CTS8-LZ10#TRMPBF SOT 8 C $1.89  $1.34 
LTC2640CTS8-LZ10#TRPBF SOT 8 C $1.29 
LTC2640CTS8-LZ12#PBF SOT 8 C $2.16 
LTC2640CTS8-LZ12#TRMPBF SOT 8 C $2.16  $1.53 
LTC2640CTS8-LZ12#TRPBF SOT 8 C $1.48 
LTC2640CTS8-LZ8#PBF SOT 8 C $1.52 
LTC2640CTS8-LZ8#TRMPBF SOT 8 C $1.52  $1.08 
LTC2640CTS8-LZ8#TRPBF SOT 8 C $1.03 
LTC2640HTS8-HM10#PBF SOT 8 H $2.28 
LTC2640HTS8-HM10#TRMPBF SOT 8 H $2.28  $1.61 
LTC2640HTS8-HM10#TRPBF SOT 8 H $1.56 
LTC2640HTS8-HM12#PBF SOT 8 H $2.61 
LTC2640HTS8-HM12#TRMPBF SOT 8 H $2.61  $1.84 
LTC2640HTS8-HM12#TRPBF SOT 8 H $1.79 
LTC2640HTS8-HM8#PBF SOT 8 H $1.91 
LTC2640HTS8-HM8#TRMPBF SOT 8 H $1.91  $1.35 
LTC2640HTS8-HM8#TRPBF SOT 8 H $1.30 
LTC2640HTS8-HZ10#PBF SOT 8 H $2.28 
LTC2640HTS8-HZ10#TRMPBF SOT 8 H $2.28  $1.61 
LTC2640HTS8-HZ10#TRPBF SOT 8 H $1.56 
LTC2640HTS8-HZ12#PBF SOT 8 H $2.61 
LTC2640HTS8-HZ12#TRMPBF SOT 8 H $2.61  $1.84 
LTC2640HTS8-HZ12#TRPBF SOT 8 H $1.79 
LTC2640HTS8-HZ8#PBF SOT 8 H $1.91 
LTC2640HTS8-HZ8#TRMPBF SOT 8 H $1.91  $1.35 
LTC2640HTS8-HZ8#TRPBF SOT 8 H $1.30 
LTC2640HTS8-LM10#PBF SOT 8 H $2.28 
LTC2640HTS8-LM10#TRMPBF SOT 8 H $2.28  $1.61 
LTC2640HTS8-LM10#TRPBF SOT 8 H $1.56 
LTC2640HTS8-LM12#PBF SOT 8 H $2.61 
LTC2640HTS8-LM12#TRMPBF SOT 8 H $2.61  $1.84 
LTC2640HTS8-LM12#TRPBF SOT 8 H $1.79 
LTC2640HTS8-LM8#PBF SOT 8 H $1.91 
LTC2640HTS8-LM8#TRMPBF SOT 8 H $1.91  $1.35 
LTC2640HTS8-LM8#TRPBF SOT 8 H $1.30 
LTC2640HTS8-LZ10#PBF SOT 8 H $2.28 
LTC2640HTS8-LZ10#TRMPBF SOT 8 H $2.28  $1.61 
LTC2640HTS8-LZ10#TRPBF SOT 8 H $1.56 
LTC2640HTS8-LZ12#PBF SOT 8 H $2.61 
LTC2640HTS8-LZ12#TRMPBF SOT 8 H $2.61  $1.84 
LTC2640HTS8-LZ12#TRPBF SOT 8 H $1.79 
LTC2640HTS8-LZ8#PBF SOT 8 H $1.91 
LTC2640HTS8-LZ8#TRMPBF SOT 8 H $1.91  $1.35 
LTC2640HTS8-LZ8#TRPBF SOT 8 H $1.30 
LTC2640ITS8-HM10#PBF SOT 8 I $2.08 
LTC2640ITS8-HM10#TRMPBF SOT 8 I $2.08  $1.47 
LTC2640ITS8-HM10#TRPBF SOT 8 I $1.42 
LTC2640ITS8-HM12#PBF SOT 8 I $2.38 
LTC2640ITS8-HM12#TRMPBF SOT 8 I $2.38  $1.68 
LTC2640ITS8-HM12#TRPBF SOT 8 I $1.63 
LTC2640ITS8-HM8#PBF SOT 8 I $1.74 
LTC2640ITS8-HM8#TRMPBF SOT 8 I $1.74  $1.23 
LTC2640ITS8-HM8#TRPBF SOT 8 I $1.18 
LTC2640ITS8-HZ10#PBF SOT 8 I $2.08 
LTC2640ITS8-HZ10#TRMPBF SOT 8 I $2.08  $1.47 
LTC2640ITS8-HZ10#TRPBF SOT 8 I $1.42 
LTC2640ITS8-HZ12#PBF SOT 8 I $2.38 
LTC2640ITS8-HZ12#TRMPBF SOT 8 I $2.38  $1.68 
LTC2640ITS8-HZ12#TRPBF SOT 8 I $1.63 
LTC2640ITS8-HZ8#PBF SOT 8 I $1.74 
LTC2640ITS8-HZ8#TRMPBF SOT 8 I $1.74  $1.23 
LTC2640ITS8-HZ8#TRPBF SOT 8 I $1.18 
LTC2640ITS8-LM10#PBF SOT 8 I $2.08 
LTC2640ITS8-LM10#TRMPBF SOT 8 I $2.08  $1.47 
LTC2640ITS8-LM10#TRPBF SOT 8 I $1.42 
LTC2640ITS8-LM12#PBF SOT 8 I $2.38 
LTC2640ITS8-LM12#TRMPBF SOT 8 I $2.38  $1.68 
LTC2640ITS8-LM12#TRPBF SOT 8 I $1.63 
LTC2640ITS8-LM8#PBF SOT 8 I $1.74 
LTC2640ITS8-LM8#TRMPBF SOT 8 I $1.74  $1.23 
LTC2640ITS8-LM8#TRPBF SOT 8 I $1.18 
LTC2640ITS8-LZ10#PBF SOT 8 I $2.08 
LTC2640ITS8-LZ10#TRMPBF SOT 8 I $2.08  $1.47 
LTC2640ITS8-LZ10#TRPBF SOT 8 I $1.42 
LTC2640ITS8-LZ12#PBF SOT 8 I $2.38 
LTC2640ITS8-LZ12#TRMPBF SOT 8 I $2.38  $1.68 
LTC2640ITS8-LZ12#TRPBF SOT 8 I $1.63 
LTC2640ITS8-LZ8#PBF SOT 8 I $1.74 
LTC2640ITS8-LZ8#TRMPBF SOT 8 I $1.74  $1.23 
LTC2640ITS8-LZ8#TRPBF SOT 8 I $1.18 
LTC2640A-12 数据手册及相关资料下载
  1. 数据手册(英文) : LTC2640 - Single 12-/10-/8-Bit SPI VOUT DACs with Bidirectional Reference.PDF
  2. 设计要点 (英文) : DN448 - 12-bit DAC in TSOT-23 Includes Bidirectional REF Pin for Connection to Op Amp or External High Precision Reference.PDF
  3. 设计要点 (中文) : DN448 - 采用 TSOT-23 封装的 12 位 DAC 包括双向 REF 引脚以连接运算放大器或外部高精度基准.PDF
  4. 可靠性数据 : R461 Reliability Data .PDF
  5. 产品选型卡 : Voltage Output DACs.PDF